Add bin and edit workflow

bin/gems/rouge-4.7.0/lib/rouge/theme.rb

@@ -0,0 +1,218 @@
+# -*- coding: utf-8 -*- #
+# frozen_string_literal: true
+
+module Rouge
+  class Theme
+    include Token::Tokens
+
+    class Style < Hash
+      def initialize(theme, hsh={})
+        super()
+        @theme = theme
+        merge!(hsh)
+      end
+
+      [:fg, :bg].each do |mode|
+        define_method mode do
+          return self[mode] unless @theme
+          @theme.palette(self[mode]) if self[mode]
+        end
+      end
+
+      def render(selector, &b)
+        return enum_for(:render, selector).to_a.join("\n") unless b
+
+        return if empty?
+
+        yield "#{selector} {"
+        rendered_rules.each do |rule|
+          yield "  #{rule};"
+        end
+        yield "}"
+      end
+
+      def rendered_rules(&b)
+        return enum_for(:rendered_rules) unless b
+        yield "color: #{fg}" if fg
+        yield "background-color: #{bg}" if bg
+        yield "font-weight: bold" if self[:bold]
+        yield "font-style: italic" if self[:italic]
+        yield "text-decoration: underline" if self[:underline]
+
+        (self[:rules] || []).each(&b)
+      end
+    end
+
+    def styles
+      @styles ||= self.class.styles.dup
+    end
+
+    @palette = {}
+    def self.palette(arg={})
+      @palette ||= InheritableHash.new(superclass.palette)
+
+      if arg.is_a? Hash
+        @palette.merge! arg
+        @palette
+      else
+        case arg
+        when /#[0-9a-f]+/i
+          arg
+        else
+          @palette[arg] or raise "not in palette: #{arg.inspect}"
+        end
+      end
+    end
+
+    def palette(*a) self.class.palette(*a) end
+
+    @styles = {}
+    def self.styles
+      @styles ||= InheritableHash.new(superclass.styles)
+    end
+
+    def self.render(opts={}, &b)
+      new(opts).render(&b)
+    end
+
+    def get_own_style(token)
+      self.class.get_own_style(token)
+    end
+
+    def get_style(token)
+      self.class.get_style(token)
+    end
+
+    def name
+      self.class.name
+    end
+
+    class << self
+      def style(*tokens)
+        style = tokens.last.is_a?(Hash) ? tokens.pop : {}
+
+        tokens.each do |tok|
+          styles[tok] = style
+        end
+      end
+
+      def get_own_style(token)
+        token.token_chain.reverse_each do |anc|
+          return Style.new(self, styles[anc]) if styles[anc]
+        end
+
+        nil
+      end
+
+      def get_style(token)
+        get_own_style(token) || base_style
+      end
+
+      def base_style
+        get_own_style(Token::Tokens::Text)
+      end
+
+      def name(n=nil)
+        return @name if n.nil?
+
+        @name = n.to_s
+        register(@name)
+      end
+
+      def register(name)
+        Theme.registry[name.to_s] = self
+      end
+
+      def find(n)
+        registry[n.to_s]
+      end
+
+      def registry
+        @registry ||= {}
+      end
+    end
+  end
+
+  module HasModes
+    def mode(arg=:absent)
+      return @mode if arg == :absent
+
+      @modes ||= {}
+      @modes[arg] ||= get_mode(arg)
+    end
+
+    def get_mode(mode)
+      return self if self.mode == mode
+
+      new_name = "#{self.name}.#{mode}"
+      Class.new(self) { name(new_name); set_mode!(mode) }
+    end
+
+    def set_mode!(mode)
+      @mode = mode
+      send("make_#{mode}!")
+    end
+
+    def mode!(arg)
+      alt_name = "#{self.name}.#{arg}"
+      register(alt_name)
+      set_mode!(arg)
+    end
+  end
+
+  class CSSTheme < Theme
+    def initialize(opts={})
+      @scope = opts[:scope] || '.highlight'
+    end
+
+    def render(&b)
+      return enum_for(:render).to_a.join("\n") unless b
+
+      # shared styles for tableized line numbers
+      yield "#{@scope} table td { padding: 5px; }"
+      yield "#{@scope} table pre { margin: 0; }"
+
+      styles.each do |tok, style|
+        Style.new(self, style).render(css_selector(tok), &b)
+      end
+    end
+
+    def render_base(selector, &b)
+      self.class.base_style.render(selector, &b)
+    end
+
+    def style_for(tok)
+      self.class.get_style(tok)
+    end
+
+  private
+    def css_selector(token)
+      inflate_token(token).map do |tok|
+        raise "unknown token: #{tok.inspect}" if tok.shortname.nil?
+
+        single_css_selector(tok)
+      end.join(', ')
+    end
+
+    def single_css_selector(token)
+      return @scope if token == Text
+
+      "#{@scope} .#{token.shortname}"
+    end
+
+    # yield all of the tokens that should be styled the same
+    # as the given token.  Essentially this recursively all of
+    # the subtokens, except those which are more specifically
+    # styled.
+    def inflate_token(tok, &b)
+      return enum_for(:inflate_token, tok) unless block_given?
+
+      yield tok
+      tok.sub_tokens.each do |(_, st)|
+        next if styles[st]
+
+        inflate_token(st, &b)
+      end
+    end
+  end
+end